Right now I’ve been using Tailscale because it automatically adapts to my network conditions. If I’m at home, it’ll prioritize local network connection, but when I’m out and about, it’ll automatically beam a direct connection or use a relay.
One gripe I have about it is I can’t run it alongside my normal VPNs on my mobile devices. I have to choose between one or the other.
I have tried Cloudflare Tunnel before, but using it for streaming, like Jellyfin, is forbidden. There’s also the added latency and slowness to having to hop through multiple DCs to reach Cloudflare and back.
You can use DNS-01 with duckdns to get certificates! Here are the docs on how to set that up with traefik.
About the wireguard but no other VPN - that’s a phone problem, as it (at least android) only allows one VPN type connection at once. But one could set it up in a way that uses wireguard on the phone to connect to your home network and than use a proxy running there that does the other VPN connection. Also routing all mobile traffic using wireguard on a foreign WiFi network (or something) through your home network is basically the same as using a commercial VPN, if the goal is that the ‘owner’ of the foreign WiFi does not see your traffic.